# Definitions

**Citation:** 4 CCR 723-4 Rule 4526  
**Type / status:** regulation / current  
**Agency:** Colorado Public Utilities Commission  
**Effective:** Not stated  
**Published:** Not stated

(a) "Federal technical support document" shall mean the 2016 technical support document of the Federal Interagency Working Group on Social Cost of Greenhouse Gases, entitled "Technical Update of the Social Cost of Carbon for Regulatory Impact Analysis Under Executive Order 12866" or the most recentl

## Document text

(a) “Federal technical support document” shall mean the 2016 technical support
document of the Federal Interagency Working Group on Social Cost of
Greenhouse Gases, entitled “Technical Update of the Social Cost of Carbon for

Regulatory Impact Analysis Under Executive Order 12866” or the most recently
available successor of the 2016 federal technical support document, where the
recommended discount rate and the starting values are consistent with §§ 40-
3.2-106(4) and 40-3.2-107(2)(a), C.R.S. The addendum to the federal technical
support document is entitled “Addendum to Technical Support Document on
Social Cost of Carbon for Regulatory Impact Analysis under Executive Order
12866: Application of the Methodology to Estimate the Social Cost of Methane
and the Social Cost of Nitrous Oxide.”

## Provenance

- Official: Yes
- Source: <https://www.sos.state.co.us/CCR/DisplayRule.do?action=ruleinfo&ruleId=2260&deptID=18&agencyID=96&deptName=Department%20of%20Regulatory%20Agencies&agencyName=Public%20Utilities%20Commission&seriesNum=4%20CCR%20723-4>
- Source ID: `co-sos-ccr`
- SHA-256: `c004a41d80ab6afc67d093a046745c32070e8b7567bc88b36a1b3368151ab237`
- Retrieved: 2026-08-12T04:36:48.096Z
- Exported: 2026-08-27T03:22:33.804Z
- Document slug: `co-ccr-4-723-4-4526`

### Source metadata

```json
{
  "jurisdiction": "US-CO",
  "code": "4 CCR 723-4",
  "ruleKey": "4526",
  "pipelineScope": "colorado-jurisdictional-gas-utilities",
  "legalScope": "Current 4 CCR 723-4 rules regulating Colorado jurisdictional gas utilities and gas master-meter operators, including construction, operation, system safety, gas infrastructure planning, metering, service, and enforcement provisions. This is an adjacent gas-utility corpus, not a replacement for the repealed dedicated 4900-series pipeline-safety rules.",
  "applicabilityCaveat": "Part 4 applies according to Colorado Public Utilities Commission jurisdiction and each rule's scope. The former dedicated pipeline-safety rules 4900 through 4975 are reserved after repeal; this connector does not represent them as current. Part 4 does not replace federal pipeline-safety requirements, determine whether a facility is interstate or intrastate, or resolve operator-specific orders, waivers, tariffs, or later rulemaking.",
  "references": [],
  "ruleInfoUrl": "https://www.sos.state.co.us/CCR/DisplayRule.do?action=ruleinfo&ruleId=2260&deptID=18&agencyID=96&deptName=Department%20of%20Regulatory%20Agencies&agencyName=Public%20Utilities%20Commission&seriesNum=4%20CCR%20723-4",
  "pucRulesUrl": "https://puc.colorado.gov/gasrulesandregulations",
  "ruleVersionId": "12549",
  "editionEffectiveOn": "2026-06-14",
  "publicationStatus": "The Colorado Secretary of State identifies the source as the official publication of state administrative rules. The edition date applies to the compiled rule version and is not represented as the effective date of every provision.",
  "rights": "Official state rule text is preserved with attribution and source links. Public accessibility does not imply rights in agency marks, third-party material, or incorporated standards; commercial redistribution requires review.",
  "region": "CO"
}
```